<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">I’m a bit late to this conversation, and I don’t totally understand the goal.<div class=""><br class=""></div><div class="">There are a *lot* of things you can do in for…in loop with pattern matching that also would supposedly go against this interpretation of approachability. Pattern matching in general might be considered to go against this interpretation.</div><div class=""><br class=""></div><div class="">Is this pitch saying statements such as:</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>for i in 1..<100 where i%2 == 1 {…} </div><div class=""><br class=""></div><div class="">should be disallowed, while statements like</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>for case let view? in views { … }</div><div class=""><br class=""></div><div class="">are still approachable enough to warrant being supported in the language?</div><div class=""><br class=""></div><div class=""><div class="">FWIW, I wouldn’t support removing where based on current arguments without either the keyword “where" being eliminated completely from the language, and/or adding equivalent intuitive functionality to Sequence with same-class performance, e.g. a .where(...) equivalent to .lazy.filter(…). </div><div class=""><br class=""></div><div class="">I’ve known about and used the feature since it was first added to Swift (learned via the language book), and don’t fully understand the confusion that some developers may have - especially since ‘while’ is already a keyword and could have been used if that was the actual semantics.</div></div><div class=""><br class=""></div><div class="">-DW</div><div class=""><br class=""></div><div class=""><div class=""><div><blockquote type="cite" class=""><div class="">On Jun 14, 2016, at 10:32 AM, Xiaodi Wu via swift-evolution <<a href="mailto:swift-evolution@swift.org" class="">swift-evolution@swift.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">And from the WWDC Platforms SOTU: "Swift is super simple and approachable.... It's great as a first language. And in fact, we think this is so important that when we designed Swift this was an explicit design goal."</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">I would be absolutely against adding any more sugar to the for loop. In that sense, `where` sets a terrible example that certain features of sequences deserve contextual sugar. (And before someone points it out again, I've already argued why `for...in` holds its own weight, namely difficulty of writing a correct `while` replacement and progressive disclosure to the learner so that the concept of iterators can be learned afterwards.)</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">In short, I would very much be opposed to adding keywords "for fun."</span></div></blockquote></div><br class=""></div></div></body></html>